Improved magneto-electric mgohfne



2 Sheets-Sheet G- WI BEARDSLEE.

Magneto Electric Machine.- No. 25,558. Patented Dec. 27, 1859.

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Magneto Electric Machine.

No. 26,558. y Patented Dec. 27, 1859.

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iM PROVED MAGNETO-ELECTRlC 'MAGHNL Specification forming part o'ffLctters Patent No. 26,558, dated ,December 27, 1859.

To all irhom it may concern:

Bc it known that `I, GEORGE W. Bimens- Lnn, ot" the town of Flushing, College Point, in the county of Queens and State of New York, have invented certain new and useful Improvements in Magneto-Electric Machines; and` l do hereb;` declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making part of this specitication, in which? Figure l is a vertical section of the magnetoelectric machine, and Figs. Zand 3 horisontal sections thereof, taken at the lines A a and B c 0il Fig. l,

rlhe same letters indicate like parts in allthe igures. Y

The first part of my. invention relates to a novel construction ot' magnets; Vand this part ot my invention consistsin constituting awheel .of magnets of a series of radial plates or bars connected at their inner ends by a continuous ring, thereby forming a compound magnet, whether such connecting-ring he formed by lieveling the edges of the several plates or bars at their inner ends and so binding them that they will all be in contact 'and be( thereby closed at their inner ends, or effecting this by abutting the inner ends of the radial plates or bars against a continuous ring, or hy forming the whole from a circular plate or disk by cutting out a succession oi' V-shaped pieces from the periphery, leaving a con tin nous rin g around the hollow center with the series ofmagnet poles radiating therefrom like spokes from a huh, or however produced so long as the'poles radiate and theirinner ends are closed/either contact or byr continuous ring in the'same je ane.

Acompound magnet so constituted will oe found to present many advantages overa conlpoundmagnet composed or a series of horseslice-magnets connected together to form a wheel, because they can he made cheaper, more accurate, not so liable to warp in tempering, and, it' warped, the clamping of a series ci such lwheels together Jto-multipl5r the linmber of compound magnets will bend them back to the required plaine.l Being closed at the inner ends, they will not be liable to change polarity, and. a .greater number of poles can he vplaced m a circle ci a given diameter than it" -made in an;T other fornnland can oe better adjusted or made accurate, which is a matter of great importance, as in the operation ot' a magneto-electric machine it is important that all the poles should pass over the centers of their appropriate helices at the same instant oi' time. The most important result of this or-v ganization of compound magnets is the equalization ci' the magnetism in all the poles-a result which is of the 'rst importanccin magneto-electric machines in viewof the diticulty of obtaining a series of magnets equally charged. When the armature or core of any one helix is just midway between the north and south poles of any one h orseshoemagnet the change or magnetic iniiuence takes place, -for the north and south poles of anyone magnet are of equal strength, and just midway hetween` the two will be the neutral point, and at the instant of passing thisponfltlchaug ot' magnetic inliuence takes place; but when, by reason of the rotation, the helix is brought between the north pole of one such magnet and the north pole of the next which happens to be of different strength, the neutral point where theochange of magnetic induence takes place will not be midway between the two poles, hut nearest to the weak pole. This inequality produces confusion in the impulses from the several helices, which, instead o t he- `ing simultaneous, are produced in succession;

butwith myiniproved coinponnd magnet, even when the separate poles are charged with dir"- erent strength, theiy all become equal as the two poles ot a single horseshoe-magnet, and in consequence the impulses from all the heliceswill he simultaneous.

The second part of my invention, which relatesftoi an arrangement of fixed bands or rings' for receiving the induced electric impulses, consists in combining with rotating' compound magnets one or morepairs ot insulated rings of non-magnetic metal placed outside the circle of rotating magnets, and with which the terminal wires of the helices are to be connected, whereby the connection and disconnection can he readily made and changed, whether the machine be in motion or at rest.

The construction'of the magneto-electric inachine isrepresented in the accompanying drawings.

The bottom and columns A A, which constitute the frame of the machine, may be constructed of any non-magnetic metal, wood. or othermaterial,ofsuch proportions and strength as may loe-required. The main vertical shaft b may' be iron or other metal, upon which the revolving plates of brass or other non-magnetic metal are fixed, for'the purpose of receiving the series of maghi-ets. Y

The plates c c for receiving the magnets, and to which they are securely fastened' by the nuts d d,rare turned oi'I true in a lathe, and in like vmanner the magnets, when firmly clamped and one on top of another and 'firmly clamped to the plates c c; and several series may be-mounted on the same shaft, two being represented in the drawings.

Each 'com pound magnet nasa series'ot poles,

north and south, (marked in Fig. 2 n and 3,)

radiating from the central port ion of the plates like the spokes ot a Wheel, and formed by cutting ont the metal of the plate between every two; andlin making these'care should be-ob served to h'afve all thepoles in each compound magnet at equal distances, and when a series of such are put together to have them alike andl accurately piled on each other and firmly clamped to insure Contact.

- The poles of all the compound magnets of each series should c rrespond, and when two series are. lmounted on one shaft the north poles of the second series should be under the south poles of the first series, and if. a third series beaddedthe poles ofthe third series should correspond with the poles ot' the first series,. and alternate with the poles ofthe second series, and so on with any'number ofseries that suchv length and size as required for the kind of current wished.

The ring g for receiving the helices may be of any non-conducting material, and is mounted and firmly held in the required position on the columns ofthe machine. hh are metallic non-magnetic rings attached to the ring g, to Y,which clamps Mare attached to receive the terminal wires of the helices. There mustibe two such rings for one or more series ot' magnets.

The metallic holding-clamps jj are fastened tothe ring g, and also to the bottom of the machine, and are for the purpose of uniting one or more pairs of each series of helices by bitching together the terminal Wires a c and ct c by clamping them therein; and although I prefer l he mode of constructin g the compound magnets from circular plates as being decidedly the best, and desire to be understood as making claim to such mode of construction, neverthe` less I Wish it to be distinctly understood that in the organization of' the machine other modes .of construction may be substituted as inferior equivalents, but involving the chief characten istics which I have already defined under the head of the first part of' my invention; and,in v

short, as to the entire invention I wish to be understood as reserving to myself the privii lege of making all merely formal changes.

What I claim as my invention is- 1. The compound magnet herein described,

.consisting of radial poles arranged about a -of the helices are connected, substantially as described. l

GEO; W. BEARDSLEE.

Witnesses ANDREW DELAoY, WM. H. BIsHoP. 

